Forming process of cylinder reinforcing ribs based on electroplasticity and impact type

Abstract

The invention discloses a forming process of cylinder reinforcing ribs based on electroplasticity and an impact type, and belongs to the field of barrel machining. According to the forming process of the cylinder reinforcing ribs based on the electroplasticity and the impact type, the reinforcing ribs of a cylinder are formed at a time by impacting a electroplasticity material. The process has the advantages of being suitable for titanium alloys and other difficult-to-machine materials, high in efficiency, wide in application range, free of welding seams, good in quality, capable of saving materials and energy and low in production cost. According to the forming process, the eccentric stamping principle is used, the working load is small, the application range is wide, and the inner and outer ribs of a cylinder can be machined. According to the forming process, the problems that materials such as titanium alloys and high-strength steel are low in plasticity, poor in ductility and difficult to machine during cold machining are solved through electroplastic forming, and meanwhile the defects that the workpiece precision is poor and the microstructure is difficult to control during high-temperature machining of the titanium alloys and the high-strength steels are overcome.

Description

technical field [0001] The invention belongs to the field of cylinder body processing, in particular to a forming process for cylinder reinforcement ribs based on electroplasticity and impact. Background technique [0002] The large thin-walled cylinder with ribs is the main component of the launch vehicle fuel tank and engine casing. This kind of parts has the characteristics of large diameter, thin wall thickness, high processing precision and high quality requirements, so it is extremely difficult to manufacture, which is a typical neck-holding technology in the aerospace industry. [0003] At present, there are only two effective methods for processing such parts at home and abroad, the process route of "roll bending forming + chemical milling + welding" or "high-speed CNC milling + equidistant press bending + welding". Complexity, low production efficiency, difficulty in quality assurance, high cost, serious waste of materials and energy, etc. For example, the process...

AI Technical Summary

Problems solved by technology

[0003] At present, there are only two effective methods for processing such parts at home and abroad, the process route of "roll bending forming + chemical milling + welding" or "high-speed CNC milling + equidistant press bending + welding". Complicated, low production efficiency, difficult to guarantee quality, high cost, serious waste of materials and energy, etc.

For example, the processing methods of integral rolling and spinning have the problems of complex molds, high cost, complex equipment and large tonnage

These problems are more prominent when processing titanium alloy cylinders, which seriously restrict the application of titanium alloys, which are difficult-to-machine materials with high strength and light weight but poor room temperature plasticity.

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